#1
expound v. [
elaborate, lucubrate, expatiate, exposit, enlarge, flesh out, expand, dilate] add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing; "She elaborated on the main ideas in her dissertation"
. wn #2
expound v. [
set forth, exposit] state; "set forth one's reasons"
. wn